Opened 7 months ago

Closed 7 months ago

#15816 closed enhancement (fixed)

firefox-91.4.0esr

Reported by: ken@… Owned by: ken@…
Priority: normal Milestone: 11.1
Component: BOOK Version: git
Severity: normal Keywords:
Cc:

Description

Now available, release notes expected tomorrow.

Change History (3)

comment:1 by ken@…, 7 months ago

https://www.mozilla.org/en-US/security/advisories/mfsa2021-53/

#CVE-2021-43536: URL leakage when navigating while executing asynchronous function

Reporter
    Sunwoo Kim and Youngmin Kim of SNU CompSec Lab
Impact
    high

Description

Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the target URL.
References

    Bug 1730120

#CVE-2021-43537: Heap buffer overflow when using structured clone

Reporter
    bo13oy of Cyber Kunlun Lab
Impact
    high

Description

An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash.
References

    Bug 1738237

#CVE-2021-43538: Missing fullscreen and pointer lock notification when requesting both

Reporter
    Irvan Kurniawan (@sourc7)
Impact
    high

Description

By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks.
References

    Bug 1739091

#CVE-2021-43539: GC rooting failure when calling wasm instance methods

Reporter
    Asumu Takikawa and Ioanna Dimitriou
Impact
    high

Description

Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash.
References

    Bug 1739683

#CVE-2021-43541: External protocol handler parameters were unescaped

Reporter
    chriscla
Impact
    moderate

Description

When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped.
References

    Bug 1696685

#CVE-2021-43542: XMLHttpRequest error codes could have leaked the existence of an external protocol handler

Reporter
    Raphael Smolik
Impact
    moderate

Description

Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages for loading external protocols.
References

    Bug 1723281

#CVE-2021-43543: Bypass of CSP sandbox directive when embedding

Reporter
    Armin Ebert
Impact
    moderate

Description

Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content.
References

    Bug 1738418

#CVE-2021-43545: Denial of Service when using the Location API in a loop

Reporter
    Paul Zühlcke
Impact
    low

Description

Using the Location API in a loop could have caused severe application hangs and crashes.
References

    Bug 1720926

#CVE-2021-43546: Cursor spoofing could overlay user interface when native cursor is zoomed

Reporter
    Daniel Veditz
Impact
    low

Description

It was possible to recreate previous cursor spoofing attacks against users with a zoomed native cursor.
References

    Bug 1737751

#MOZ-2021-0009: Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4

Reporter
    Mozilla developers and community
Impact
    high

Description

Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs present in Firefox 94 and Firefox ESR 91.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.

comment:3 by ken@…, 7 months ago

Resolution: fixed
Status: assignedclosed

Security Advisory SA 11.030 created.

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